My consultant thinks I have hypersensitivity pneumonitis: I have a few questions...could HP be caused by my pillows and duvet? Both are down filled but hypoallergenic and my pillows are in protective casing for dust mites etc...I've been using the same type of pillows for 20 odd years now, so I find it hard to believe that this could cause my lung scarring lol..but maybe I don't want to feel like a total fool for causing this Myself due to my pillows! Also, if I have extensive scarring (which I do as I've now seen the ct scan pictures) would this not now be IPF because as I understand it IPF is unknown pulmonary fibrosis and I think that scarring is fibrosis..or am I wrong? Ugh, it is all very confusing lol...my new consultant says I'm a puzzle lol..well I sure am puzzled! He is sending me for a VAT lung biopsy so I'm hoping this will give a conclusive answer, meanwhile I keep thinking ....is it really all because of my pillows!!!